The Washington Times reports the cyber-attack on Google and other U.S. companies was part of a suspected Chinese government operation launched last year that used human intelligence techniques and high-technology to steal corporate secrets, according to U.S. government and private-sector cybersecurity specialists.

More worrying, however, is the likelihood that the cyber-attacks that led Google this week to end its cooperation with Beijing-controlled censorship and move its search engine service to Hong Kong included planting undetectable software on American company networks that could allow further clandestine access or even total control of computers in the future.